- Companies
- Cleaning companies
- Northampton
- NN Window Cleaning Limited
NN Window Cleaning Limited
- Company number
- 16523423
- Incorporated
- 17 Jun 20251 year trading
- Registered office
- Suite 147, 45 Gold Street, Northampton, NN1 1RA
- Nature of business
- General cleaning of buildings; Window cleaning services
NN Window Cleaning Limited is a 1-year-old private limited company registered in Northampton, company number 16523423, one of 249 cleaning companies in Northampton. Its next accounts are due at Companies House on 17 March 2027, and its first CT600 is due at HMRC on 16 June 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where NN Window Cleaning Limited is registered
The registered office is in Northampton (NN1), in the West Northamptonshire local authority area, East Midlands. Show NN1 1RA on a map.
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- Setup Phone LtdRepair services
- Macmarlloe LtdPlumbers and heating engineers
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Also registered at this address
6 other companies use the same registered office as NN Window Cleaning Limited.
- Amethyst Cleaning LtdCleaning companies
- Fresh and Flawless Cleaning LtdCleaning companies
- NN Commercial Cleaning LtdCleaning companies
- NN Window Cleaning Croydon LimitedCleaning companies
- NN Window Cleaning Milton Keynes LimitedCleaning companies
- NN Window Cleaning Northampton LimitedCleaning companies
What happens if NN Window Cleaning Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 17 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Mar 2027 to 17 Apr 2027 | £150 |
| 1 to 3 months late | 18 Apr 2027 to 17 Jun 2027 | £375 |
| 3 to 6 months late | 18 Jun 2027 to 17 Sep 2027 | £750 |
| More than 6 months late | From 18 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16523423
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 June 2025 (1 year ago)
- Registered office
- Suite 147, 45 Gold Street, Northampton, NN1 1RA
- Nature of business
- General cleaning of buildings (SIC 81210)
Window cleaning services (SIC 81221) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 16 June 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Northampton
Other active cleaning companies registered in Northampton.
- NN Window Cleaning Milton Keynes Limited2025
- NN Window Cleaning Northampton Limited2025
- Northampton Window Cleaning Ltd2016
- Northants Drain Jetting Ltd2025
- Northants Pressure Washing Ltd2025
- Northants Waste Control Limited2009
- O&C Empress Ltd2025
- Oana Professional Cleaning Services Ltd2019
All cleaning companies in Northampton · All trades in Northampton · Cleaning companies across the UK
Frequently asked questions
When are NN Window Cleaning Limited's accounts due?
NN Window Cleaning Limited's next accounts are due at Companies House by 17 March 2027 (in 155 days), covering the period to 30 June 2026.
When is NN Window Cleaning Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 June 2026, due by 16 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is NN Window Cleaning Limited still trading?
NN Window Cleaning Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does NN Window Cleaning Limited do?
NN Window Cleaning Limited is registered under General cleaning of buildings (SIC 81210); Window cleaning services (SIC 81221).
How old is NN Window Cleaning Limited?
NN Window Cleaning Limited was incorporated on 17 June 2025, 1 year ago.
What is the penalty if NN Window Cleaning Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View NN Window Cleaning Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.